Grinder support attachment for main journals and the like without removal of the shaft



6, 1951 E. SAWYER GRINDER SUPPORT- ATTACHMENT FOR MAIN JOURNALS AND THE LIKE WITHOUT REMOVAL OF THE SHAFT Filed June 3 1948 2 SHEETS--5HEET 1 INVENTOR. UEENE AWYE m ATTORNEY.

Nov. 6, 1951 Filed June 5, 1948 E. SAWYER 2,574,223 GRINDER SUPPORT ATTACHMENT FOR MAIN JOURNALS AND THE LIKE WITHOUT REMOVAL OF THE SHAFT 2 SHEETS-SHEET 2 32\ F|E.I5+ 34 m m 32 IN V EN TOR.

TEN: ZjMZE-B A TTORNE Y.

Patented Nov. 6, 1951 OFFICE.

GRINDER, surron'r ATTACHMENT FOR MAIN JOURNALS AND THE LIKE wrrnonr REMOVAL or run SHAFT Eugene. SawyenBenld, Ill.

7 Application June3, 1948, Serial No. 30,7 84

My invention relates to an attachment and grinder support for attachment to the bearing support element for a shaft journal whereby a grinding machine may be held withits grinder inworking position against the journal for grinding and reconditioning the journal without removing the shaft from its running position.

A further object of the invention is to provide a device of the kind mentioned which is readily adaptable for use on a varied range of design of journal bearing supports.

A still further object is to provide a device of the kind mentioned that is'inexpensive, simply made, and one that issimple and easy to use. These and other objects will be more fullydescribed as this description progresses.

Now referring to the accompanying drawings in which similar numerals ofreference designate the same parts-throughout the several figures of the drawings. a

Fig. l is a rear view of a grinding machine being supported on my improved attachment and showing the attachment mounted on a bearing support and showing a journal in position in the bearing and showing a grinder wheel of a grinding machine ingrinding position against the journal.

Fig. 2 is a transverse detail sectional view through a portion of theupper part of an eng-ine crankcase and showing a bearing support that is a part thereof and in which is positioned a bearing and journal. positioned therein and showing my improved support attachment mounted on the bearing support, the bearing support being ofa varied design-from that shown in Fig. l and showing an adapter associated with the support for adapting thesupport for use with thevaried design of bearing support shown in- Fig. 2'.

Fig. 3 is a rear view of a support rod for the grinder machine.

Fig. 4'isa bottom. end- View of'the support rod shown in Fig. 3. Fig. aside viewofm r. supportattachment. Fig. 6 is a rear view of the support attachment shown-in Fig. 5;

Fig. l is a top plan view of the support attachment ShOWIl-ill'Fig. 6.

Fig. 8- is a bottom plan view of the: attachment adapter;

Fig. 9 is a side view of the attachment adapter.

Fig. 101s a top plan viewof the adapter.

Fig. llis a detail side-viewof an-anchor stud employed to hold the. support attachment-on the bearing support elements 1 2 Claims. (01. 5 1-241.)

Fig. 12 is a bottom plan viewv of the anchor; shownin Fig. 11.

Fig. 13 isa bottom plan view of the suppor attachment shown in Fig. 6 and showing. a cone centric sleeve element therein for receiving the upper end of the supportrod shown in Fig. 3.

Fig. 14 is a detail sectional view through the device shown in Fig. 13 the view being as seen from the line XIV-XIV in. Fig, 13' and looking in the direction of the arrows.

-Fig. 15 is a bottom plan View of the amehment support and showing an eccentric sleeve therein for receiving the upper end of the support rod shown inFig. 3. 1

Fig. 16 is a detail sectionalview;throughthe attachment supportjt'he view being as seen from the line XVIXVIin Fig. 15 and looking in the direction of the arrows. In the drawings'is shown an electricallydriven grinding machine having a grinding. wheel 21 in engagement with a journal. 22 for grinding purposes thereof, The grinder machine 20 is sup. ported on arms 23 and 23a that is slidableand revolvably supported on a support rod 24?. by means of a knurled thumb nut 25 that is threaded on the lower end of the rod 24 and by the turn ing thereof adjusts the grinder machine 2 0.150? ward or away from the journal 22. Around. the shaft 24 is a helical spring 26 that is undercompression between a stop 21 and the upper support leg 23a thatserves as a stabilizer for the adjusted positionof the grindingmachine 20..

The device is provided'with a. stabilizer element 29, the upper portion oi -which is bolted to the oil pan. supporting flange 30, the elementifl extending downwardly therefrom and having. a laterally extending leg 31- engaging the rod 24' for, stabilizing purposes of the grinder 2i The foregoing descriptionis that of probably any one of standard grinding machines and the upper end of the support rod 24 is normally providedwith' attachments to-be receivedby crank pins therefore the machine would be limited for use in grinding crank pins only. Now to-adapt themachin'e-for use in grinding main journals I-have dispensed with the crank pin. attachment and made a flattened portion 28 in one side of the upper end of the support rod 24 for purposes that will later be described. 7

- I'have also provided a C-shaped attachment element 32, the lower leg 32a is provided-with atransverse hole.33 therein in which is revolv ably positioned a'sleeve 34 which as shown in Figs. 13 and 14 is a concentric sleeve and as shown in Figs. 1,5 and 16 i'san'eccentric sleeve.

These sleeves are interchangeable and may be used for purposes that will later be described.

The sleeves 34 are each provided with screw holes 35 through which a set screw 35 may slidably pass, the set screw 36 being threadably passed through the leg 32a as shown in Figs. 14 and 16.

The upper .endjof the rod is slidablyreceivable in either of the sleeves 34 and after being positioned therein the set screw is screened through the sleeve 34 so that the end of set screw' 36 will engage and bear against the flat surface 28 of the support rod 24 to rigidly bind'andhold the support rod 24 to the attachment element 32.

The upper leg 32!) of the attachment element 32 is also provided with a bore 31 to receive one end of an anchor stud 38.

The anchor stud 38 comprises a one end of which is provided with a standard thread 39 and the other end of which is provided with an S. A. E. thread 40 and the S. A. E. 40 end of the stud is provided with an axially positioned multisided hole 4| for receiving a matching wrench by which the stud may be turned as will later be described.

Now to assemble the device for use, the conventional bearing cap would be removed, whereupon the bearing cap retainer studs-@would'be exposed whereupon one or all of the studs may be removed from the bearing support element B whereupon the standard threaded end 39 of the stud 38 may be threaded into one cfthe holes left by the aforementioned studs and to, make the stud 38 more solid and rigid a suitable wrench may be placed in the wrench holel whereby the stud may be further turned to tighten it in the bearing support element B. The stud 38 having thus been positioned is ready to receive the attachment element 32. The attachment element 32 isv positioned with its upper leg-32b in parallelism with the bearing support element and the open part of the 0 thereof facing toward the journal 22 and then moved upwardly until the lower end 40 of the stud 38 passes through the bore 31 of the upper leg 32b of the attachment element 32, whereupon a standard S. A. E. nut 42 may be threaded on the threads 4|! to rigidly bind and hold the attachment element 32 to the bearing support element B whereupon the grinding machine 20 is held in proper position for doing the job of grinding the journal 22.

If desired, the S. A. E. end 40 of the stud 38 could be assembled through the bore 31 and the nut 42 threaded thereon after which the standard threads 39 may be threaded into the bearing support B and by the advance turning of the stud 38 by its wrench as above described the attachment element 32 will be rigidly bound in position against the bearing supportelement B regardless of whether or not the stud portion 40 turns in the nut 42 because if the nut would stand still and the stud 38 were turned the stud 38 would travel upwardly through the bearing support element B faster than it would through the nut 42, therefore the leg 321) would be rigidly bound and held between the bearing: support element B and the nut 42.

It is also true that the studs that hold the bearing caps in different bearing assemblies will vary in diameter therefore substitute anchor studs may be made in which the threads 4!! may remain the same but the upper end 39 of the stud 38 may increase or decrease in size to fit the particular job in which the stud is used.

In some machines the bearing design is a little I to fit in and fill the recess 43. .44 is provided with a stud hole 45 that is the same sizees the stud hole 31 in the leg 32b of Y the attachment element 32. The filler element straight stud.

44 is provided with a downwardly extending pin 46 that is adapted to be received in a hole 41 in the leg 32b of the attachment element 32, the pin 46 being so placed will position the stud hole 45 in registry with the stud hole 31 in the leg 32b of the attachment element 32. The plate 44 having been so placed, the attachment element 32 may be placedin position on the bearing-support element B and rigidly attached theretoin the same manner as above described.

This device is applicable for use on Journals of varying diameters and to successfully do the job of grinding a journal the center axis of the grinder wheel 2| should either pass through or be positioned close to the longitudinal axis of the journal 22 at all times, therefore it becomes necessary to move the grinder machine 28--2| forwardly or rearwardly, depending on the diameter of the journal to acquire the relative pdsition of the axes of the grinding machine 2|l2| and the journal 22 as above'described.

The plate 44 having been so placed, the attachment element 32 may be placed in position on the bearing support element B and rigidly attached thereto in the same manner as above described.

In order-to accomplish this movement or adjustment, the bore 33 is provided with the proper sleeve 34, that is, a concentric sleeve as shown in Figs. 13 and l4 may be used with what is probably the most common sizejournal 22, but if the journal is larger in diameter, the eccentric sleeve would be used as shown in Figs. 15 and 16 which would shift the grinder wheel 2| outwardly to aquire the proper axial relations as above mentioned, or if the journal is of a smaller diameter the sleeve 34 would be revolved degrees to that shown in Figs. 15 and 16, whereupon the grinder wheel 2| would be retracted to acquire-the same axes relationship as above mentioned. The proper sleeve 34 having been selected and properly positioned in the leg 32a of the attachment element 32, the set screw 36 may be turned and advanced through one of the holes 35 to engage the flat portion 28' of the rod 24 to rigidly hold the ,rod 24 in its properly adjusted position.

The device assembled as above described is now ready for use. In using the device, the electric motor 20 is started, whereupon the grinder wheel 2| is revolved at a high rate 01 speed and the journal 22 is also revolved by a power foreign to the grinder 20-2| and as the grinder wheel 2| and the journal 22 revolve the grinder machine 20-2| is swung by hand in an are about the center axis of the support rod 24 and the pressure of the grinder wheel 2| against the journal 22 is-adjustably governed by the thumb nut 25 on the lower threaded end of the rod 24, whereupon the support arms 23 and 23a and grinder 202l supported thereon will be raised or lowered in accordance with the tuming of the thumb nut 25 to be raised or lowered in accordance with the turning of the thumb nut 25 to raise the grinder wheel 2| against the journal 22. Simultaneously with this action the spring 26 exerts pressure against the support arm 23a so that as the thumb nut 25 is screwed downwardly to lower the grinder 202| the downward movement thereof will be insured by the pressure of the spring-26 thereon.

While the invention as herein shown and described is probably the preferred form of the invention, it is to be understood that such modifications of the invention may be employed as lie within the scope of the appended claims without departing from the spirit and intention of the invention.

Now having fully shown and described my invention, what I claim is:

1. In a portable grinder support for attachment to a main journal bearing support of an engine; said grinder support being substantially C- shaped, one leg of the 0 having a hole therethrough to receive a threaded stud carried by the said bearing support, the other leg of the said 0 having a hole therethrough and having an adjustment sleeve therein to receive a support shaft of the grinder, and means in the last said leg of the C for binding and holding the said sleeve and support shaft in fixed adjusted positions, said adjustment sleeve being an eccentric sleeve and being revolvable in the last said leg of the C to adjust the center axis of the said support shaft toward and away from the outer axis of the said main journal.

' 2. In a portable grinder support for attachmeat to a ai J urnal bearing suPPort of an cm ine: said grinder support being substantially O-shaped, one leg of the 0 having a hole therethrough to receive a threaded stud carried by the said bearing support, the other leg of the said 0 having a hole therethrough and having an adjustment sleeve therein to receive a support shaft of the grinder, and means in the last said leg of the O for binding and holding the said sleeve and support shaft in fixed adjusted positions; in combination with the foregoing defined structure, a filler block, said filler block being positioned intermediate the said bearing support element and the grinder support to properly position the grinder support relative to the journal carried in the bearing carried by the bearing support element, said fill-er block having a hole therethrough that is the same size as the hole in the first said leg of the G, and pin means carried by the filler block and receivable in the first said leg of the C for stationing the filler block on the first said leg of the C so that the hole in the filler block and in the first said leg of the C will be in registry with each other.

EUGENE SAWYER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,310,388 Boynton et al July 15, 1919 1,523,890 Parkinson Jan. 20, 192-5 2,13 03 Fuglie et al Sept. 13, 1938 2,275,757 Hanson Mar. 10, 1942 zrr-"rsr -r-l-v-r-ry 

